Search Results - "Roudet, F."

Mechanical properties of magnetite (Fe 3O 4), hematite (α-Fe 2O 3) and goethite (α-FeO·OH) by instrumented indentation and molecular dynamics analysis by Chicot, D., Mendoza, J., Zaoui, A., Louis, G., Lepingle, V., Roudet, F., Lesage, J.

“…► Mechanical properties of magnetite, hematite and goethite. ► Oxides characterization as pure crystals and as corrosion products. ► Molecular Dynamic Analysis…”
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Improvement in Calibration Procedure in Nanoindentation: An Indenter Bluntness Indicator by Chicot, D., Montagne, A., Mejias, A., Roudet, F., Coorevits, T.

“…Background Nanoindentation experiments require the calibration of the tip area function, which involves up to 9 fitting coefficients following classical…”
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Influence of thermo-hygrometric conditions on the interface bond in 3D printed concrete by Taleb, M., Bulteel, D., Montagne, A., Roudet, F., Rémond, S., Chicot, D.

“…For the additive manufacturing in civil engineering, the cementitious ink must have contradictory properties to be printable, indeed it must be initially fluid…”
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Self-calibration in compliance and indenter tip defect for instrumented indentation by Chicot, D., Mejias, A., Roudet, F., Montagne, A., Betrancourt, D., Coorevits, T.

“…The accuracy in the determination of the mechanical properties by instrumented indentation strongly depends on the indenter/material contact area, the…”
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Multi-scale mechanical characterization of the interface in 3D printed concrete by Taleb, M., Bulteel, D., Betrancourt, D., Roudet, F., Rémond, S., Montagne, A., Chicot, D.

“…To be printable, the cementitious ink may have contradictory properties. It must be fluid enough initially to be pumpable and extrudable, also should stiffen…”
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Instrumented indentation study of slag in view of a better valorization by Betrancourt, D., Chicot, D., Kossman, S., Louis, G., Roudet, F., Bulteel, D.

“…•BOF slag has a great potential of recycling.•BOF slag is a heterogeneous and complex material.•Mechanical properties of the different phases were determined…”
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Indentation creep analysis of T22 and T91 chromium based steels by Nogning Kamta, P., Mejias, A., Roudet, F., Louis, G., Touzin, M., Chicot, D.

“…Classical creep tests are very time-consuming, they usually take more than one year for steels, whereas creep analysis by instrumented indentation tests (IIT)…”
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Work-of-indentation coupled to contact stiffness for calculating elastic modulus by instrumented indentation by Yetna N'Jock, M., Roudet, F., Idriss, M., Bartier, O., Chicot, D.

“…•A new relationship between the elastic recovery energy to the total work-of-indentation ratio and the applied load to the square of the contact stiffness…”
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Influence of the indenter tip defect in classical indentation: Application to the hardness determination of DLC thin films by Benarioua, Y., Roudet, F., Chicot, D.

“…For an accurate determination of the materials hardness, instrumented indentation test is undoubtedly the most adequate technique compared to the classical…”
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A criterion to identify sinking-in and piling-up in indentation of materials by N’jock, M. Yetna, Chicot, D., Ndjaka, J.M., Lesage, J., Decoopman, X., Roudet, F., Mejias, A.

“…The instrumented indentation test is usually used to determine the mechanical properties of materials. Depending on the nature of the material, the way the…”
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Influence of visco-elasto-plastic properties of magnetite on the elastic modulus: Multicyclic indentation and theoretical studies by Chicot, D., Roudet, F., Zaoui, A., Louis, G., Lepingle, V.

“…In the present work, we study the indentation behaviour of the magnetite coexisting with hematite in a natural dual-phase crystal. In particular we show the…”
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Modeling of very thin aluminum nitride film mechanical properties from nanoindentation measurements by Roudet, F., Chicot, D., Decoopman, X., Iost, A., Bürgi, J., Garcia-Molleja, J., Nosei, L., Feugeas, J.

“…The mechanical property determination of thin films by nanoindentation can be affected by the substrate depending on the indentation testing conditions and the…”
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Some improvements for determining the hardness of homogeneous materials from the work-of-indentation by Chicot, D., N’Jock, M. Yetna, Roudet, F., Decoopman, X., Staia, M.H., Puchi-Cabrera, E.S.

“…In this work, the total and plastic hardness of a variety of materials were determined from the work-of-indentation. We show that by taking into account the…”
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Comparison of instrumented Knoop and Vickers hardness measurements on various soft materials and hard ceramics by Chicot, D., Mercier, D., Roudet, F., Silva, K., Staia, M.H., Lesage, J.

“…Vickers and Knoop hardness measurements performed on various ceramics (hard metals) and light alloy materials (soft metals) are compared. The results show that…”
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Elastic modulus of TiHfCN thin films by instrumented indentation by Chicot, D., Puchi-Cabrera, E.S., Aumaitre, R., Bouscarrat, G., Dublanche-Tixier, C., Roudet, F., Staia, M.H.

“…The determination of the elastic modulus of thin films by indentation at nano or micrometric scale is possible by applying different models allowing the…”
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Thin film hardness determination using indentation loading curve modelling by Chicot, D., Gil, L., Silva, K., Roudet, F., Puchi-Cabrera, E.S., Staia, M.H., Teer, D.G.

“…A methodology for determining the thin film hardness from a microindentation loading curve is proposed. The loading curve is modelled to compute the dynamic…”
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Recent Developments in Suspension Plasma Sprayed Titanium Oxide and Hydroxyapatite Coatings by Jaworski, R., Pawlowski, L., Pierlot, C., Roudet, F., Kozerski, S., Petit, F.

“…The paper aims at reviewing of the recent studies related to the development of suspension plasma sprayed TiO 2 and Ca 5 (PO 4 ) 3 OH (hydroxyapatite, HA)…”
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Strain gradient plasticity to study hardness behavior of magnetite (Fe3O4) under multicyclic indentation by Chicot, D., Roudet, F., Lepingle, V., Louis, G.

“…The hardness of a material is generally affected by the indentation size effect. The strain gradient plasticity (SGP) theory is largely used to study this load…”
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Analysis of indentation size effect in copper and its alloys by Chicot, Didier, Puchi-Cabrera, Eli Saúl, Iost, Alain, Staia, M.H., Decoopman, Xavier, Roudet, Francine, Louis, G.

“…For describing the indentation size effect (ISE), numerous models, which relate the load or hardness to the indent dimensions, have been proposed…”
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Analysis of data from various indentation techniques for thin films intrinsic hardness modelling by Chicot, D., Bemporad, E., Galtieri, G., Roudet, F., Alvisi, M., Lesage, J.

“…Due to the influence of the substrate, direct measurement of the hardness of thin films by standard micro-indentation tests is not always possible. In such…”
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